lm8850urx National Semiconductor Corporation, lm8850urx Datasheet - Page 3

• Manufacturer Part Number: lm8850urx
• Description: High-performance, Step-up Dc-dc Converter For High- Power Applications In Mobile Devices
• Manufacturer: National Semiconductor Corporation

V
V
I
I
I
R
R
I
SHDN
Q_PFM
Q_PWM
LIM
OUT
OUT
DSON (NFET)
DSON (PFET)
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
in boldface type apply over the operating junction temperature range (−40°C
specifications apply to the LM8850 open loop Typical Application Circuit with V
VIN Pin to GND
EN, PG, SDA, SCLK pins to
GND
VOUT to GND
SW pin to GND
BAL to GND
Junction Temperature (T
Storage Temperature Range
Continuous Power Dissipation
(Note
Maximum Lead Temperature
ESD Rating
Symbol
Human Body Model
Machine Model
Charged Device Model
(Soldering, 10 sec.)
3)
(Note
Output Voltage
Output Voltage Range
Register 0
Output Voltage Range
Register 1
Shutdown Supply Current
Quiescent Current in PFM
Mode
Quiescent Current in PWM
Mode
Pin-Pin Resistance for Sync
NFET
Pin-Pin Resistance for
PFET
Switch Peak Current Limit
4)
Parameter
J-MAX
)
−65°C to +150°C
Internally Limited
(Note
(GND−0.2V) to
I
VSEL bits = 0 0 0
VSEL bits = 0 0 1
VSEL bits = 0 1 0
VSEL bits = 0 1 1
VSEL bits = 1 0 0
VSEL bits = 1 0 1
VSEL bits = 1 1 0
VSEL bits = 1 1 1
V
V
ISEL bits = 111
VIN = 4.5V
ISEL bits = 101
VIN = 4.5V
ISEL bits = 011
VIN = 4.5V
ISEL bits = 001
VIN = 4.5V
−0.2V to 6.5V
−0.2V to 6.0V
−0.2V to 6.5V
−0.2V to 6.0V
OUT
IN
IN
(Note
= V
= V
2,
= 0mA, V
+150°C
Note
GS
GS
1250V
260°C
1)
200V
6.5V
2kV
= 3.6V
= 5.0V
7,
Condition
OUT
Note
3
= 5V
8,
Note
Operating Ratings
Thermal Properties
Input Voltage Range
Recommended Load
Current
Junction Temperature (T
Range
Ambient Temperature (T
Range
Junction-to-Ambient Thermal
Resistance (θ
(micro SMD)
9)
(Note
Limits in standard typeface are for T
≤
IN
T
= EN = 3.6V.
J
(Note
5)
JA
= T
)
A
1350
Min
-2.5
923
666
477
≤
6)
+85°C). Unless otherwise noted,
A
J
)
)
1500
1025
Typ
330
200
215
740
530
3.6
3.9
4.2
4.5
4.7
5.0
5.3
5.7
0.4
6
(Note
1,
Note
−40°C to +125°C
1650
1128
+2.5
Max
500
814
583
−40°C to +85°C
10
3
A
= 25°C. Limits
2)
2.3V to 5.5V
0mA to 1.0A
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70°C/W
Units
mΩ
mA
µA
%
V